CVE-2018-15717: Open Dental before version 18.4 stores user passwords as base64 encoded MD5 hashes.

Q: How do I fix CVE-2018-15717?

opendental: upgrade to 18.4. Exact commands for each OS are on this page.

Q: Is CVE-2018-15717 being exploited?

CVE-2018-15717 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2018-15717 affect?

CVE-2018-15717 affects opendental. Severity is medium (CVSS 5.3). Open Dental before version 18.4 stores user passwords as base64 encoded MD5 hashes.

Q: How urgent is CVE-2018-15717?

Priority 35/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 5.3REMOTEUPGRADE

CVE-2018-15717 is a medium-severity flaw (CVSS 5.3) affecting opendental. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Open Dental before version 18.4 stores user passwords as base64 encoded MD5 hashes.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 56%)
CISA exploited list	No
Weakness	CWE-916, CWE-522
Published	2018-12-12
Last modified	2026-06-17

Publisher (CNA): Tenable Network Security, Inc. · Vendor: opendental

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-12-12 19:29 UTCPublished CVE record published
2026-06-17 01:42 UTCUpdated Record last modified

opendental opendental UPGRADE

Affected: < 18.4

Fixed in: 18.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy opendental || rpm -q opendental || opendental --version

2. UPGRADE to 18.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade opendental

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade opendental

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-15717?

opendental: upgrade to 18.4. Exact commands for each OS are on this page.

Is CVE-2018-15717 being exploited?

CVE-2018-15717 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-15717 affect?

CVE-2018-15717 affects opendental. Severity is medium (CVSS 5.3). Open Dental before version 18.4 stores user passwords as base64 encoded MD5 hashes.

How urgent is CVE-2018-15717?

Priority 35/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2018-15719 CRITICAL 9.8 UPGRADE Open Dental before version 18.4 installs a mysql database and uses the default credentials of "root" with a bl
CVE-2018-15718 HIGH 7.5 UPGRADE Open Dental before version 18.4 transmits the entire user database over the network when a remote unauthentica
CVE-2016-6531 CRITICAL 9.8 UPGRADE Open Dental 16.1 and earlier has a hardcoded MySQL root password, which allows remote attackers to obtain admi

References

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